<ion-header>
    <ion-navbar>
        <ion-title>Simple Example</ion-title>
    </ion-navbar>
</ion-header>
<ion-content padding class="simple">
    <ion-item>
        <ion-label>Simple Picker</ion-label>
        <ion-multi-picker id='simple' item-content [multiPickerColumns]="simpleColumns"></ion-multi-picker>
    </ion-item>
    <ion-item>
        <ion-label>Placeholder</ion-label>
        <ion-multi-picker id='placeholder' item-content [multiPickerColumns]="simpleColumns" placeholder="placeholder"></ion-multi-picker>
    </ion-item>
</ion-content>